The invention discloses a pollution-free and high-quality paddy rice planting method. The method comprises the following steps: S1, rice field pretreatment, wherein a field planted with green manure is selected, and then turning over of green manure, irrigation, retting, rotary tillage and raking, and ridge separation are carried out; S2, rice transplanting; S3, fertilization, wherein after 5-8 days of rice transplanting, 80-100 kg of a mixed fertilizer is applied to each mu of the field, the depth of water in the rice field is kept to be 8-10 cm, and the mixed fertilizer comprises the following raw materials in parts by weight: 75-130 parts of an organic fertilizer, 30-55 parts of an inorganic fertilizer, 6-10 parts of gas making carbonized coalball slag, 5-10 parts of diatomite, 6-9 parts of seaweed and 4-7 parts of chitosan; S4, duck grazing; S5, fertilization after a heading stage, wherein after the heading stage of seedlings, ducks are evicted from the field, urea are topdressed, the depth of water in the rice field is kept to be 8-10 cm, and 2-4 kg of urea is applied to each mu of the field; S6, harvest. The paddy rice planted by the method is high in quality, environment-friendly and free from contamination.